Fixed a bug: Bad meta in set diffs
Fixed a bug: Bad meta in set diffs

drolbr/Overpass-API,mmd-osm/Overpass-API,drolbr/Overpass-API,mmd-osm/Overpass-API,drolbr/Overpass-API,drolbr/Overpass-API,drolbr/Overpass-API,mmd-osm/Overpass-API,drolbr/Overpass-API,mmd-osm/Overpass-API